function validate(t) {
	var searchedtxt = t.str.value;
	var searchtxt = t.str.value.toLowerCase();
	for (i = 0; i < searchtxt.length; i++) {
		if ((searchtxt.charCodeAt(i) == 32) || ((searchtxt.charCodeAt(i) >= 48) && (searchtxt.charCodeAt(i) <= 57)) || ((searchtxt.charCodeAt(i) >= 97) && (searchtxt.charCodeAt(i) <= 122))) {
		}
		else {
			alert("Please enter alphanumeric characters only (i.e. A-Z, a-z, 0-9)");
			return false;
		}
	}
	var urlstr = searchedtxt.replace(/ /g,'+');
	document.location = "../search.htm?str=" + urlstr + "&page=1";
	return false;
}